prettier-plugin-ember-template-tag

prettier-plugin-ember-template-tag

A Prettier plugin for formatting Ember template tags in both .gjs and .gts files. See also Ember Template Imports.

Usage

1. Install:

   NPM:

   npm install --save-dev prettier prettier-plugin-ember-template-tag
   

   Yarn:

   yarn add --dev prettier prettier-plugin-ember-template-tag
   

   PNPM:

   pnpm add --save-dev prettier prettier-plugin-ember-template-tag
   

2. Configure with prettierrc:

   // .prettierrc.js
   module.exports = {
     // ...
     plugins: ['prettier-plugin-ember-template-tag'],
   };
   

3. Run npm prettier --write .

Opinions

This plugin works by weaving together Prettier's standard babel-ts and glimmer parsers, so it doesn't have many opinions of its own.

With that said, I did have to make some decisions about when and where to include or omit semicolons. You can read more about and comment on my decision process on this RFC.

Configuration

These configuration options are available in addition to Prettier's standard config for JavaScript and Handlebars files.

Name	Default	Description
templateSingleQuote	false	Same as in Prettier but affecting only template tags

Ignoring code

Because gts/gjs files include both JavaScript and Glimmer template code, you'll need to use the appropriate prettier-ignore comment for the code you are ignoring:

export default class MyComponent extends Component {
  // prettier-ignore
  cells = matrix(
    1, 0, 0,
    0, 1, 0,
    0, 0, 1
  )

  <template>
    {{! prettier-ignore }}
    {{#each this.cells as |cell|}}{{cell.contents}}{{/each}}
  </template>
}

To ignore the entire template, use a JavaScript //prettier-ignore comment before the opening <template> tag:

export default class MyComponent extends Component {
  // prettier-ignore
  <template>
    This whole template is ignored
    <MyUglyComponent     "shall"     be="preserved">
      <ThisPart
        is  =  "also preserved as is"
      />
    </MyUglyComponent>
  </template>
}

Bugs

If you find a bug, please file a bug report! See CONTRIBUTING.md for more details.